function.expand: Further fix the docstring.
function.expand: Further fix the docstring.

The docstring still contained a mention of hints being applied in
arbitrary order.

Gadal/sympy,cswiercz/sympy,Mitchkoens/sympy,rahuldan/sympy,yashsharan/sympy,yashsharan/sympy,abhiii5459/sympy,AunShiLord/sympy,toolforger/sympy,farhaanbukhsh/sympy,Titan-C/sympy,hargup/sympy,souravsingh/sympy,saurabhjn76/sympy,AkademieOlympia/sympy,Shaswat27/sympy,cswiercz/sympy,abhiii5459/sympy,yukoba/sympy,sunny94/temp,kevalds51/sympy,ga7g08/sympy,asm666/sympy,MridulS/sympy,srjoglekar246/sympy,farhaanbukhsh/sympy,Shaswat27/sympy,mafiya69/sympy,Arafatk/sympy,drufat/sympy,diofant/diofant,postvakje/sympy,Curious72/sympy,sahmed95/sympy,garvitr/sympy,shipci/sympy,abhiii5459/sympy,Designist/sympy,pbrady/sympy,kaichogami/sympy,jbbskinny/sympy,bukzor/sympy,kmacinnis/sympy,sahilshekhawat/sympy,debugger22/sympy,garvitr/sympy,chaffra/sympy,grevutiu-gabriel/sympy,MridulS/sympy,Sumith1896/sympy,sahmed95/sympy,ga7g08/sympy,jaimahajan1997/sympy,abloomston/sympy,kevalds51/sympy,sahilshekhawat/sympy,oliverlee/sympy,ChristinaZografou/sympy,toolforger/sympy,Gadal/sympy,asm666/sympy,lidavidm/sympy,debugger22/sympy,dqnykamp/sympy,ChristinaZografou/sympy,Sumith1896/sympy,atreyv/sympy,rahuldan/sympy,lindsayad/sympy,hrashk/sympy,jaimahajan1997/sympy,moble/sympy,VaibhavAgarwalVA/sympy,skidzo/sympy,mcdaniel67/sympy,vipulroxx/sympy,wyom/sympy,kmacinnis/sympy,MechCoder/sympy,Curious72/sympy,sampadsaha5/sympy,toolforger/sympy,vipulroxx/sympy,lidavidm/sympy,oliverlee/sympy,MechCoder/sympy,jaimahajan1997/sympy,VaibhavAgarwalVA/sympy,iamutkarshtiwari/sympy,atsao72/sympy,jerli/sympy,cccfran/sympy,Titan-C/sympy,vipulroxx/sympy,mafiya69/sympy,Gadal/sympy,shikil/sympy,flacjacket/sympy,maniteja123/sympy,bukzor/sympy,sahilshekhawat/sympy,abloomston/sympy,jerli/sympy,chaffra/sympy,emon10005/sympy,maniteja123/sympy,pandeyadarsh/sympy,shipci/sympy,kumarkrishna/sympy,lindsayad/sympy,ahhda/sympy,ahhda/sympy,jamesblunt/sympy,drufat/sympy,skidzo/sympy,atsao72/sympy,ChristinaZografou/sympy,chaffra/sympy,garvitr/sympy,hrashk/sympy,kaushik94/sympy,hargup/sympy,grevutiu-gabriel/sympy,sunny94/temp,Davidjohnwilson/sympy,shikil/sympy,souravsingh/sympy,atreyv/sympy,pbrady/sympy,jamesblunt/sympy,beni55/sympy,Vishluck/sympy,lidavidm/sympy,rahuldan/sympy,hargup/sympy,atsao72/sympy,cccfran/sympy,meghana1995/sympy,Shaswat27/sympy,postvakje/sympy,debugger22/sympy,Mitchkoens/sympy,amitjamadagni/sympy,dqnykamp/sympy,MechCoder/sympy,pandeyadarsh/sympy,shikil/sympy,sampadsaha5/sympy,Davidjohnwilson/sympy,Arafatk/sympy,skidzo/sympy,moble/sympy,kaichogami/sympy,kaushik94/sympy,VaibhavAgarwalVA/sympy,moble/sympy,yukoba/sympy,souravsingh/sympy,AkademieOlympia/sympy,sunny94/temp,saurabhjn76/sympy,iamutkarshtiwari/sympy,wyom/sympy,liangjiaxing/sympy,jbbskinny/sympy,iamutkarshtiwari/sympy,ga7g08/sympy,shipci/sympy,wyom/sympy,Vishluck/sympy,AkademieOlympia/sympy,ahhda/sympy,mcdaniel67/sympy,aktech/sympy,cswiercz/sympy,saurabhjn76/sympy,Vishluck/sympy,madan96/sympy,meghana1995/sympy,bukzor/sympy,aktech/sympy,Designist/sympy,madan96/sympy,Sumith1896/sympy,liangjiaxing/sympy,oliverlee/sympy,lindsayad/sympy,kevalds51/sympy,postvakje/sympy,sahmed95/sympy,hrashk/sympy,liangjiaxing/sympy,maniteja123/sympy,cccfran/sympy,atreyv/sympy,mcdaniel67/sympy,jbbskinny/sympy,dqnykamp/sympy,sampadsaha5/sympy,farhaanbukhsh/sympy,amitjamadagni/sympy,yukoba/sympy,jerli/sympy,madan96/sympy,kumarkrishna/sympy,yashsharan/sympy,wanglongqi/sympy,skirpichev/omg,wanglongqi/sympy,mafiya69/sympy,asm666/sympy,kaichogami/sympy,aktech/sympy,kumarkrishna/sympy,Davidjohnwilson/sympy,pbrady/sympy,Curious72/sympy,MridulS/sympy,abloomston/sympy,emon10005/sympy,kmacinnis/sympy,emon10005/sympy,AunShiLord/sympy,beni55/sympy,jamesblunt/sympy,pandeyadarsh/sympy,drufat/sympy,kaushik94/sympy,beni55/sympy,Arafatk/sympy,AunShiLord/sympy,meghana1995/sympy,Designist/sympy,grevutiu-gabriel/sympy,wanglongqi/sympy,Titan-C/sympy,Mitchkoens/sympy